“After the Council of Nicea, … the State supported the associated churches by all the means in its power. It recognized the decisions of their councils and enforced them with civil pains and penalties; it also recognized the sentences of deposition and excommunication passed on members of the clergy or laity belonging to any one of the associated churches and followed them with civil disabilities. It did its best to destroy all Christianity outside of the associated churches, and largely succeeded. The rigour of the state persecution directed against Christian nonconformists in the fourth and fifth centuries has not received the attention due to it. The state confiscated their churches and ecclesiastical property (sometimes their private property also); it prohibited under penalty of proscription and death their meeting for public worship; it took from the nonconformist Christians the right to inherit or bequeath property by will; it banished their clergy; finally, it made raids upon them by its soldiery and sometimes butchered whole communities, as was the case with the Montanists in Phrygia and with the Donatists in Africa. And this glaringly un-Christian mode of creating and vindicating the visible unity of the Catholic Church of Christ was vigorously encouraged by the leaders of the associated churches who had the recognition and support of the State.”

The Church and the Ministry in the Early Centuries (1903), p. 360 http://books.google.com/books?id=IvUsAAAAMAAJ&pg=PA360